(19)
(11) EP 2 587 637 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.04.2017 Bulletin 2017/14

(43) Date of publication A2:
01.05.2013 Bulletin 2013/18

(21) Application number: 12190096.3

(22) Date of filing: 26.10.2012
(51) International Patent Classification (IPC): 
H02K 3/38(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 27.10.2011 JP 2011235849

(71) Applicants:
  • KABUSHIKI KAISHA KOBE SEIKO SHO
    Kobe-shi, Hyogo 651-8585 (JP)
  • Kobelco Construction Machinery Co., Ltd.
    Hiroshima 731-5161 (JP)

(72) Inventors:
  • Tsutsui, Akira
    Kobe-shi, Hyogo 651-2271 (JP)
  • Saiki, Seiji
    Hiroshima-shi,, Hiroshima 731-5161 (JP)
  • Koiwai, Kazushige
    Hiroshima-shi,, Hiroshima 731-5161 (JP)
  • Nakazumi, Akira
    Hiroshima-shi,, Hiroshima 731-5161 (JP)

(74) Representative: TBK 
Bavariaring 4-6
80336 München
80336 München (DE)

   


(54) Motor including heat conducting resin


(57) Provided is a motor including a stator with a coil, a stator frame, an end cover, bearings, and a heat conducting resin (60) in the stator frame. The coil includes first and second coil ends. The stator frame includes end walls, whose respective central parts form a first and a second boss (36, 46) each holding a bearing. The heat conducting resin (60) includes a first resin part (61) covering the first coil end and contacting an inner surface of the stator frame as well as the first boss (36). The heat conducting resin (60) further includes and a second resin part (62) covering the second coil end and being separated from the second boss (46). That is, the first resin part (61) has a portion between the first coil end and the first boss (36), the portion being thicker than that of the second resin part (62).







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Search report